A heat pump works much the same way an air conditioning unit works with a few differences. In the cooling mode it transfers heat outside from the inside and in the heating mode it transfer heat from the outside to the inside*.
Union, Maine. Union is a town in Knox County, Maine, United States. The population was 2,259 at the 2010 census. It is home to the Matthews Museum of Maine Heritage and annual Union Fair.
West Union, incorporated July 20, 1881, is a town in Doddridge County, West Virginia, USA. The population was 825 at the 2010 census. It is the county seat of Doddridge County. The mayor is Joseph Thorpe as of 2013. The town is located along Middle Island Creek at the junction of U.S. Route 50 and West Virginia Route 18; the North Bend Rail Trail also passes through the town.